Finding the Fourth Proportional to 1,290.89, 1,934.82 and 468.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290.89 : 1,934.82 = 468.54 : x
2. Step 2: Convert to fraction form
   1,290.89/1,934.82 = 468.54/x
3. Step 3: Cross multiply
   1,290.89x = 1,934.82 × 468.54
4. Step 4: Simplify right side
   1,290.89x = 906,540.56
5. Step 5: Solve for x
   x = 906,540.56/1,290.89
6. Step 6: Final answer
   x = 702.26